I'm on birth control and I had sex Saturday, my boyfriend didn't use a condom the whole time either(just for the first like 5 to 10 minutes maybe.) Then the next day I lost my birth control, and on Monday i took two when I found it. This isn't the first I've forgotten a day either, and its only been 3 weeks since I started taking it, I was suppose to start my period Wednesday and all I've had is spotting i suppose its like brown and its only like a little bit every few hours, (kinda detailed here) then today a little brown tinged clot come out and I'm wondering what that means? and if I could be pregnant? If you think its possible should i stop taking the birth control right away? its Mononessa so its the norgestimate and ethinyl estradiol kind.